US6047522A - Press sealing structure of a sealing machine - Google Patents

Press sealing structure of a sealing machine Download PDF

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Publication number
US6047522A
US6047522A US09/208,929 US20892998A US6047522A US 6047522 A US6047522 A US 6047522A US 20892998 A US20892998 A US 20892998A US 6047522 A US6047522 A US 6047522A
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United States
Prior art keywords
press
links
plate
sealing
machine base
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Expired - Fee Related
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US09/208,929
Inventor
Mao-Sen Huang
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Individual
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/80General aspects of machine operations or constructions and parts thereof
    • B29C66/84Specific machine types or machines suitable for specific applications
    • B29C66/861Hand-held tools
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/01General aspects dealing with the joint area or with the area to be joined
    • B29C66/05Particular design of joint configurations
    • B29C66/10Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112Single lapped joints
    • B29C66/1122Single lap to lap joints, i.e. overlap joints
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/40General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43Joining a relatively small portion of the surface of said articles
    • B29C66/431Joining the articles to themselves
    • B29C66/4312Joining the articles to themselves for making flat seams in tubular or hollow articles, e.g. transversal seams
    • B29C66/43121Closing the ends of tubular or hollow single articles, e.g. closing the ends of bags
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/70General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • B29C66/73921General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/80General aspects of machine operations or constructions and parts thereof
    • B29C66/82Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
    • B29C66/822Transmission mechanisms
    • B29C66/8221Scissor or lever mechanisms, i.e. involving a pivot point
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/80General aspects of machine operations or constructions and parts thereof
    • B29C66/82Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
    • B29C66/822Transmission mechanisms
    • B29C66/8226Cam mechanisms; Wedges; Eccentric mechanisms
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/80General aspects of machine operations or constructions and parts thereof
    • B29C66/82Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
    • B29C66/822Transmission mechanisms
    • B29C66/8227Transmission mechanisms using springs
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/80General aspects of machine operations or constructions and parts thereof
    • B29C66/83General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832Reciprocating joining or pressing tools
    • B29C66/8324Joining or pressing tools pivoting around one axis
    • B29C66/83241Joining or pressing tools pivoting around one axis cooperating pivoting tools
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/80General aspects of machine operations or constructions and parts thereof
    • B29C66/84Specific machine types or machines suitable for specific applications
    • B29C66/849Packaging machines
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B51/00Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
    • B65B51/10Applying or generating heat or pressure or combinations thereof
    • B65B51/14Applying or generating heat or pressure or combinations thereof by reciprocating or oscillating members
    • B65B51/146Closing bags

Definitions

  • the present invention relates generally to a sealing machine adapted to seal the opening of a plastic bag, and more particularly to a press sealing structure of the sealing machine to achieve quick and precise control of the sealing operation.
  • the opening of the plastic bag has to be closed using a sealing machine.
  • the operator has to place the opening of the plastic bag properly in a fusing position on the sealing machine with both hands and then use his/her fingers or foot to press a switch to start a linking-up mechanism to accomplish the sealing of the plastic bag.
  • the air inside the plastic bag will, due to squeezing, cause the press lines at the opening of the plastic bag to be irregular and slanting. This is due to the fact that the operator has to simultaneously press the start switch with his/her fingers or foot. Improvement on the prior art is therefore necessary.
  • a primary object of the present invention is to provide a press sealing structure of a sealing machine to eliminate the problems with the prior art.
  • a control box is disposed on a machine base.
  • the control box has both sides respectively connected pivotally to respective links by respective axial bolts, the links having respective front ends extending out from the machine base to connect securely with a placement press plate.
  • a heating plate extends upwardly from the placement press plate.
  • a screw bolt is secured screwably on that part of each of the links inside the machine base. The screw bolt urges against a contact press plate of a microswitch.
  • a section of each link is connected pivotally with a substantially L-shaped seat plate by means of an axial bolt.
  • the seat plate has a front end extending out from the machine base to connect securely with an upper press rod.
  • a heat-resistant plastic strip is provided clampingly at a lower portion of the upper press rod, and a spring is disposed intermediate the seat plate and the respective one of the links.
  • FIG. 1 is a perspective view of a press sealing structure of a sealing machine according to the present invention
  • FIG. 2 is a perspective view illustrating a linking-up mechanism according to the present invention in part
  • FIG. 3 is a schematic view illustrating the linking-up operation of the present invention.
  • FIG. 4 is another schematic view showing the linking-up operation according to the present invention.
  • a press sealing structure of a sealing machine is a linking-up structure with two sides symmetrical in construction. Hence, the invention will be described hereinafter with respect to one of the sides of the structure only.
  • a control box 10 is connected pivotally to a link 20 via axial bolts 22 on both sides thereof.
  • a front end of the link 20 extends out from a machine base of the sealing machine to connect securely with a placement press plate 25 adapted to receive an article to be sealed placed thereon.
  • a heating plate 26 extends upwardly from the placement press plate 25.
  • the heating plate 26 utilizes an electrothermal metal conductive plate as a heat conductor, by means of which the opening of the plastic bag can be fused together.
  • a screw bolt 24 is screwably secured on that part of the link 20 inside the machine base.
  • the bolt 24 urges against a contact press plate 12 of a microswitch 11.
  • the bolt will actuate the microswitch 11 to cause the heating plate 26 to heat up instantly to facilitate the hot press fusing operation on the opening of the plastic bag.
  • a middle section of the link 20 is connected pivotally with a substantially L-shaped seat plate 30 by an axial bolt 21.
  • a front end of the seat plate 30 extends out from the machine base to connect securely with an upper press rod 35.
  • a heat-resistant plastic strip 36 is provided clampingly at a lower portion of the upper press rod 35, adapted to smooth out and press upon the opening of the plastic bag placed on the heating plate 26.
  • a spring 33 is disposed intermediate the seat plate 30 and the link 20. By means of the resilience of the spring 33, the link 20 is caused to tilt upwardly and be positioned at a stop end 14.
  • One side of the seat plate 30 has a bottom end edge that urges against and is slidable on a top side of a roller 34.
  • the seat plate 30 may, due to the resilience of the spring 33, displaces a greater distance when tilting upwardly, as shown in FIG. 3, so that the sealing machine of the present invention can again proceed with the sealing operation.
  • the press sealing structure of a sealing machine utilizes a placement press plate connected securely to respective links on both sides of the machine base to further simultaneously link-up with two substantially L-shaped seat plates on both sides. It should be appreciated that a linking-up structure as described above is capable of overcoming the problems with conventional sealing machines.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Package Closures (AREA)

Abstract

A press sealing structure of a sealing machine includes a control box on a machine base. The control box has both sides respectively connected pivotally to respective links by respective axial bolts. The links have respective front ends extending out from the machine base to connect securely with a placement press plate. A heating plate extends upwardly from the placement press plate. A screw bolt is secured screwably on that part of each of the links inside the machine base. The screw bolt urges against a contact press plate of a microswitch. A middle section of each of the links is connected pivotally with a substantially L-shaped seat plate by means of an axial bolt. The seat plate has a front end extending out from the machine base to connect securely with an upper press rod; a heat-resistant plastic strip being provided clampingly at a lower portion of the upper press rod. A spring is disposed intermediate said seat plate and the respective one of said links. By means of this arrangement, operation of sealing openings of plastic bags by the sealing machine can be precisely controlled and proceeded.

Description

BACKGROUND OF THE INVENTION
(a) Field of the Invention
The present invention relates generally to a sealing machine adapted to seal the opening of a plastic bag, and more particularly to a press sealing structure of the sealing machine to achieve quick and precise control of the sealing operation.
(b) Description of the Prior Art
In packaging things in a plastic bag, the opening of the plastic bag has to be closed using a sealing machine. However, in using a conventional sealing machine, the operator has to place the opening of the plastic bag properly in a fusing position on the sealing machine with both hands and then use his/her fingers or foot to press a switch to start a linking-up mechanism to accomplish the sealing of the plastic bag. If the operator does not hold the side ends of the opening of the plastic bag when the opening is being hot pressed in the sealing operation, the air inside the plastic bag will, due to squeezing, cause the press lines at the opening of the plastic bag to be irregular and slanting. This is due to the fact that the operator has to simultaneously press the start switch with his/her fingers or foot. Improvement on the prior art is therefore necessary.
SUMMARY OF THE INVENTION
A primary object of the present invention is to provide a press sealing structure of a sealing machine to eliminate the problems with the prior art. According to the present invention, a control box is disposed on a machine base. The control box has both sides respectively connected pivotally to respective links by respective axial bolts, the links having respective front ends extending out from the machine base to connect securely with a placement press plate. A heating plate extends upwardly from the placement press plate. A screw bolt is secured screwably on that part of each of the links inside the machine base. The screw bolt urges against a contact press plate of a microswitch. A section of each link is connected pivotally with a substantially L-shaped seat plate by means of an axial bolt. The seat plate has a front end extending out from the machine base to connect securely with an upper press rod. A heat-resistant plastic strip is provided clampingly at a lower portion of the upper press rod, and a spring is disposed intermediate the seat plate and the respective one of the links.
BRIEF DESCRIPTION OF THE DRAWINGS
The foregoing and other features and advantages of the present invention will be more clearly understood from the following detailed description and the accompanying drawings, in which,
FIG. 1 is a perspective view of a press sealing structure of a sealing machine according to the present invention;
FIG. 2 is a perspective view illustrating a linking-up mechanism according to the present invention in part;
FIG. 3 is a schematic view illustrating the linking-up operation of the present invention; and
FIG. 4 is another schematic view showing the linking-up operation according to the present invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
With reference to FIGS. 1-4, a press sealing structure of a sealing machine according to the present invention is a linking-up structure with two sides symmetrical in construction. Hence, the invention will be described hereinafter with respect to one of the sides of the structure only. In the press sealing structure of the present invention, a control box 10 is connected pivotally to a link 20 via axial bolts 22 on both sides thereof. A front end of the link 20 extends out from a machine base of the sealing machine to connect securely with a placement press plate 25 adapted to receive an article to be sealed placed thereon. A heating plate 26 extends upwardly from the placement press plate 25. The heating plate 26 utilizes an electrothermal metal conductive plate as a heat conductor, by means of which the opening of the plastic bag can be fused together. A screw bolt 24 is screwably secured on that part of the link 20 inside the machine base. The bolt 24 urges against a contact press plate 12 of a microswitch 11. When the link 20 is being pressed downwardly, the bolt will actuate the microswitch 11 to cause the heating plate 26 to heat up instantly to facilitate the hot press fusing operation on the opening of the plastic bag. Furthermore, a middle section of the link 20 is connected pivotally with a substantially L-shaped seat plate 30 by an axial bolt 21. A front end of the seat plate 30 extends out from the machine base to connect securely with an upper press rod 35. A heat-resistant plastic strip 36 is provided clampingly at a lower portion of the upper press rod 35, adapted to smooth out and press upon the opening of the plastic bag placed on the heating plate 26. A spring 33 is disposed intermediate the seat plate 30 and the link 20. By means of the resilience of the spring 33, the link 20 is caused to tilt upwardly and be positioned at a stop end 14. One side of the seat plate 30 has a bottom end edge that urges against and is slidable on a top side of a roller 34. The seat plate 30 may, due to the resilience of the spring 33, displaces a greater distance when tilting upwardly, as shown in FIG. 3, so that the sealing machine of the present invention can again proceed with the sealing operation.
In summary, the press sealing structure of a sealing machine according to the present invention utilizes a placement press plate connected securely to respective links on both sides of the machine base to further simultaneously link-up with two substantially L-shaped seat plates on both sides. It should be appreciated that a linking-up structure as described above is capable of overcoming the problems with conventional sealing machines.
Although the present invention has been illustrated and described with reference to the preferred embodiment thereof, it should be understood that it is in no way limited to the details of such embodiment but is capable of numerous modifications within the scope of the appended claims.

Claims (4)

What is claimed is:
1. A press sealing structure of a sealing machine, comprising a control box on a machine base, said control box having both sides respectively connected pivotally to respective links by respective axial bolts, said links having respective front ends extending out from said machine base to connect securely with a placement press plate, a heating plate extending upwardly from said placement press plate, a screw bolt being secured screwably on that part of each of said links inside said machine base, said screw bolt urging against a contact press plate of a microswitch, a middle section of each of said links being connected pivotally with a substantially L-shaped seat plate by means of an axial bolt, said seat plate having a front end extending out from said machine base to connect securely with an upper press rod, a heat-resistant plastic strip being provided clampingly at a lower portion of said upper press rod, a spring being disposed intermediate said seat plate and the respective one of said links.
2. The press sealing structure of a sealing machine as defined in claim 1, wherein said links are simultaneously linked up with said seat plates.
3. The press sealing structure of a sealing machine as defined in claim 1, wherein said placement press plate and said seat plates are subjected to the resilient force of said spring to reset and tilt upwardly in a state of non-use.
4. The press sealing structure of a sealing machine as defined in claim 1, wherein said links are subjected to the resilient force of said spring to tilt slightly upwardly to be positioned at a stop end.
US09/208,929 1998-12-10 1998-12-10 Press sealing structure of a sealing machine Expired - Fee Related US6047522A (en)

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US09/208,929 US6047522A (en) 1998-12-10 1998-12-10 Press sealing structure of a sealing machine

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US09/208,929 US6047522A (en) 1998-12-10 1998-12-10 Press sealing structure of a sealing machine

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030217530A1 (en) * 2002-05-21 2003-11-27 Bernd Tillack Method and apparatus for forming and/or sealing a packaging unit
US20070125498A1 (en) * 2005-12-01 2007-06-07 Yuichiro Kataoka Heat sealer
US20120090281A1 (en) * 2009-06-11 2012-04-19 Luigi Abate Apparatus for creating a vacuum in containers
CN102963565A (en) * 2012-11-16 2013-03-13 刘海萍 Small-sized plastic sealing machine
CN105564698A (en) * 2016-01-22 2016-05-11 佛山汉格斯环保科技有限公司 Vacuum packing device
US9422073B2 (en) 2011-04-12 2016-08-23 Sunbeam Products, Inc. Vacuum packaging appliance with roll storage
CN107662729A (en) * 2017-09-20 2018-02-06 安吉十万亩白茶有限公司 A kind of packed food sealing machine
CN111216975A (en) * 2020-01-08 2020-06-02 廖远刚 A capper for food streamlined production
CN113895679A (en) * 2021-10-25 2022-01-07 深圳市科鹏微电子有限公司 PCB board packing equipment of leaving factory after inspection
US12103720B2 (en) * 2022-11-11 2024-10-01 Liang Xu Bag sealing machine

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Publication number Priority date Publication date Assignee Title
US4860523A (en) * 1986-10-31 1989-08-29 Sharp Kabushiki Kaisha Hermetic packaging apparatus
US4941310A (en) * 1989-03-31 1990-07-17 Tillia Aktiengesellschaft Apparatus for vacuum sealing plastic bags
US5177931A (en) * 1989-11-20 1993-01-12 Latter Melvin R Modified sealing machine
US5177937A (en) * 1990-07-25 1993-01-12 Alden Timothy J Method of and apparatus for sealing containers
US5239808A (en) * 1992-05-13 1993-08-31 Hantover, Inc. Vacuum packaging machine
US5638664A (en) * 1995-07-17 1997-06-17 Hantover, Inc. Vacuum packaging apparatus

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4860523A (en) * 1986-10-31 1989-08-29 Sharp Kabushiki Kaisha Hermetic packaging apparatus
US4941310A (en) * 1989-03-31 1990-07-17 Tillia Aktiengesellschaft Apparatus for vacuum sealing plastic bags
US5177931A (en) * 1989-11-20 1993-01-12 Latter Melvin R Modified sealing machine
US5177937A (en) * 1990-07-25 1993-01-12 Alden Timothy J Method of and apparatus for sealing containers
US5239808A (en) * 1992-05-13 1993-08-31 Hantover, Inc. Vacuum packaging machine
US5638664A (en) * 1995-07-17 1997-06-17 Hantover, Inc. Vacuum packaging apparatus

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6745543B2 (en) * 2002-05-21 2004-06-08 Greif-Velox Maschinenfabrik Gmbh Method and apparatus for forming and/or sealing a packaging unit
US20030217530A1 (en) * 2002-05-21 2003-11-27 Bernd Tillack Method and apparatus for forming and/or sealing a packaging unit
US20070125498A1 (en) * 2005-12-01 2007-06-07 Yuichiro Kataoka Heat sealer
US7647747B2 (en) * 2005-12-01 2010-01-19 Fujiimpulse Co., Ltd. Heat sealer
US20120090281A1 (en) * 2009-06-11 2012-04-19 Luigi Abate Apparatus for creating a vacuum in containers
US9422073B2 (en) 2011-04-12 2016-08-23 Sunbeam Products, Inc. Vacuum packaging appliance with roll storage
US10315792B2 (en) * 2011-04-12 2019-06-11 Sunbeam Products, Inc. Vacuum packaging appliance with roll storage
CN102963565B (en) * 2012-11-16 2014-10-29 刘海萍 Small-sized plastic sealing machine
CN102963565A (en) * 2012-11-16 2013-03-13 刘海萍 Small-sized plastic sealing machine
CN105564698A (en) * 2016-01-22 2016-05-11 佛山汉格斯环保科技有限公司 Vacuum packing device
CN107662729A (en) * 2017-09-20 2018-02-06 安吉十万亩白茶有限公司 A kind of packed food sealing machine
CN111216975A (en) * 2020-01-08 2020-06-02 廖远刚 A capper for food streamlined production
CN113895679A (en) * 2021-10-25 2022-01-07 深圳市科鹏微电子有限公司 PCB board packing equipment of leaving factory after inspection
CN113895679B (en) * 2021-10-25 2023-08-11 江西祥益鼎盛科技有限公司 Packaging and leaving factory equipment for PCB board after inspection
US12103720B2 (en) * 2022-11-11 2024-10-01 Liang Xu Bag sealing machine

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